Using an unofficial charger damages your phone Reducing screen brightness and the time it takes your phone to go to sleep are also easy ways to extend your battery life. “If you can connect to something stable, like if there’s Wi-Fi on the train, it’s probably better to connect to that,” Griffith says. If you’ve ever noticed your battery plummeting while on a train, it’s probably because your device is working overtime to connect to a mobile network. Having Wi-Fi and Bluetooth on in the background is a big drain on battery lifeĪpart from the screen, one of the biggest drains on battery life is the energy your phone wastes trying to find and connect to Wi-Fi or data networks. Maybe being unable to tweet while you wait isn’t all that worth it. A trial by CNET in 2014 found that turning on airplane mode shortened the charging time by just four minutes. In theory, since your phone is doing less work, the battery should charge faster, right? That’s technically true, but the speed difference turns out to be pretty minimal. Airplane mode means that all the radio frequencies are turned off, so you won’t have any cellular data and-with some phones-your Bluetooth and Wi-Fi connections will also be severed. “Your battery could give you more charge if you went beyond removing half of the lithium, but you wouldn’t be able to do that very many times.” Charging your phone on airplane mode makes it charge fasterĪ common tip to speed up phone charging when you’re in a hurry is to stick it on airplane mode. Most of the time, they’re set so only around half of the lithium in the lithium cobalt oxide layer is removed during one full charge. That’s why manufacturers set limits on the amount of charge in their batteries. To make batteries last for hundreds or thousands of charge cycles, manufacturers place limits on the amount of juice that batteries can discharge. Increasing the available charge within a battery reduces the number of times that battery can be charged and discharged without being damaged internally. At the crux of this problem is a delicate trade-off played by manufacturers. There is more juice in your smartphone battery than the percentage displayed suggests, but if you used that juice you’d end up dramatically reducing the overall lifespan of the battery. Even when your battery is at 100 percent, there’s still room for some more charge To help sort the science from the folklore, we asked a battery expert to give their verdict on some of the most pervasive myths, explain the science behind the rumors and, just maybe, offer us some sage advice on extending the life of our smartphones. Whether it’s avoiding leaving your phone on charge overnight, or powering off to give the battery a little break, we’re forever looking for ways to eke out a little more performance from our overworked batteries, even if the method doesn’t make an awful lot of sense. To make up for these inadequacies, we’ve made all kinds of battery myths. And nowhere is this more pronounced than when it comes to the fickle battery, which will drop 20 percent charge quicker than you can toggle Bluetooth off, and give up the ghost entirely after a couple of years of charging. For an object that barely ever leaves our palms, the smartphone can sometimes feel like an arcane piece of wizardry.
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